Which of the following is not a redox reaction —

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Aayush Asked Feb 2

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Which reaction represents auto redox or disproportionation reaction :

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K2Cr2O7 + C2O4^2– + H2SO4 → K2SO4 + CO2 + Cr2(SO4)3 + H2O. In above reaction, identify the elements which do not undergo change in their oxidation state —

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What volume of 0.25 M HNO3 (nitric acid) solution reacts with 50 mL of 0.15 M Na2CO3 (sodium carbonate) solution in the following reaction —

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For which of the following reactions ΔH is less than ΔE?

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From the following reaction sequence —

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The rate of first-order reaction is $0.04 {~mol} {~L}^{-1} {~s}^{-1}$ at $10 {s}$ and $0.03 {mol} {~L}^{-1} {~s}^{-1}$ at $20 {~s}$ after initiation of the reaction. The half-life period of the reaction is

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When white phosphorus reacts with caustic soda, the products are PH3 and NaH2PO2. This reaction is an example of :

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ALOK_RAJ Asked Nov 28, 2023

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The reaction given below, involving the gases is observed to be first order with rate constant $7.48 \times 10^{-3} {sec}^{-1}$.

ALOK_RAJ Asked Nov 28, 2023

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Aayush Asked Feb 22

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The vapor pressures of benzene, toluene and a xylene are 75 Torr, 22 Torr and 10 Torr at 20°C. Which of the following is not a possible value of the vapor pressure of an equimolar binary/ternary solution of these at 20°C? Assume all form ideal solution with each other.

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Aayush Asked Jan 4

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For the cell prepared from electrode A and B, electrode $A : \frac{ Cr _{2} O _{7}^{2-}}{ Cr ^{3+}}, E _{\text {red. }}^{0}=+1.33 V$ and electrode $B$ : $\frac{F_{e^{3+}}^{F e^{2+}}, E_{\text {red. }}^{0}}{}=0.77 V$, which of the following statement is not correct?

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ALOK_RAJ Asked Nov 18, 2023

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Which one of the following is not a compound?

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Aayush Asked Feb 2

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Assuming 100% yield of the reaction, how many moles of NaHCO3 will produce 448 mL of CO2 gas at STP according to the reaction —

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If 30 ml of H2 and 20 mL of O2 react to form water, what will be left at the end of the reaction?

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A Chemical equation is balanced according to the law of —

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In the given reaction

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In the balanced chemical reaction —

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For the reaction

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A function f is defined by $f(x)=2+(x-1)^{2 / 3}$ in [0,2]. Which of the following is not correct?

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When initial concentration of a reactant is doubled in a reaction, its half-life period is not affected. The order of the reaction is —

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In the following reaction, 3A(g) + B(g) ⇌ 2C(g) + D(g), Initial moles of B is double of A. At equilibrium, moles of A and C are equal. Hence % dissociation of B is :

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Consider the following reactions at 300K.

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Which of the following is not a redox reaction —

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